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android / platform / external / mesa3d / 537dbf6d8f0e9630b41282f7907bbd399590a640 / . / src / egl / drivers / dri2 / egl_dri2.c
blob: ab76565f6acbe9ff0be72475f59cb2fee9c2a7a0 [file] [log] [blame]
/*
* Copyright © 2010 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Kristian Høgsberg <krh@bitplanet.net>
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <limits.h>
#include <dlfcn.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <xf86drm.h>
#include <GL/gl.h>
#include <GL/internal/dri_interface.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "egl_dri2.h"
const __DRIuseInvalidateExtension use_invalidate = {
{ __DRI_USE_INVALIDATE, 1 }
};
EGLint dri2_to_egl_attribute_map[] = {
0,
EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
0, /* __DRI_ATTRIB_RENDER_TYPE, */
0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
0, /* __DRI_ATTRIB_CONFORMANT */
0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
0, /* __DRI_ATTRIB_STEREO */
0, /* __DRI_ATTRIB_AUX_BUFFERS */
0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
0, /* __DRI_ATTRIB_FLOAT_MODE */
0, /* __DRI_ATTRIB_RED_MASK */
0, /* __DRI_ATTRIB_GREEN_MASK */
0, /* __DRI_ATTRIB_BLUE_MASK */
0, /* __DRI_ATTRIB_ALPHA_MASK */
EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
0, /* __DRI_ATTRIB_SWAP_METHOD */
EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
};
static EGLBoolean
dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
{
if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
return EGL_FALSE;
if (!_eglMatchConfig(conf, criteria))
return EGL_FALSE;
return EGL_TRUE;
}
struct dri2_egl_config *
dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
int depth, EGLint surface_type, const EGLint *attr_list,
const unsigned int *rgba_masks)
{
struct dri2_egl_config *conf;
struct dri2_egl_display *dri2_dpy;
_EGLConfig base;
unsigned int attrib, value, double_buffer;
EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
unsigned int dri_masks[4] = { 0, 0, 0, 0 };
_EGLConfig *matching_config;
EGLint num_configs = 0;
EGLint config_id;
int i;
dri2_dpy = disp->DriverData;
_eglInitConfig(&base, disp, id);
i = 0;
double_buffer = 0;
bind_to_texture_rgb = 0;
bind_to_texture_rgba = 0;
while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
switch (attrib) {
case __DRI_ATTRIB_RENDER_TYPE:
if (value & __DRI_ATTRIB_RGBA_BIT)
value = EGL_RGB_BUFFER;
else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
value = EGL_LUMINANCE_BUFFER;
else
/* not valid */;
_eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
break;
case __DRI_ATTRIB_CONFIG_CAVEAT:
if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
value = EGL_NON_CONFORMANT_CONFIG;
else if (value & __DRI_ATTRIB_SLOW_BIT)
value = EGL_SLOW_CONFIG;
else
value = EGL_NONE;
_eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
break;
case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
bind_to_texture_rgb = value;
break;
case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
bind_to_texture_rgba = value;
break;
case __DRI_ATTRIB_DOUBLE_BUFFER:
double_buffer = value;
break;
case __DRI_ATTRIB_RED_MASK:
dri_masks[0] = value;
break;
case __DRI_ATTRIB_GREEN_MASK:
dri_masks[1] = value;
break;
case __DRI_ATTRIB_BLUE_MASK:
dri_masks[2] = value;
break;
case __DRI_ATTRIB_ALPHA_MASK:
dri_masks[3] = value;
break;
default:
key = dri2_to_egl_attribute_map[attrib];
if (key != 0)
_eglSetConfigKey(&base, key, value);
break;
}
}
if (attr_list)
for (i = 0; attr_list[i] != EGL_NONE; i += 2)
_eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
if (depth > 0 && depth != base.BufferSize)
return NULL;
if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
return NULL;
base.NativeRenderable = EGL_TRUE;
base.SurfaceType = surface_type;
if (surface_type & (EGL_PBUFFER_BIT |
(disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
base.BindToTextureRGB = bind_to_texture_rgb;
if (base.AlphaSize > 0)
base.BindToTextureRGBA = bind_to_texture_rgba;
}
base.RenderableType = disp->ClientAPIs;
base.Conformant = disp->ClientAPIs;
if (!_eglValidateConfig(&base, EGL_FALSE)) {
_eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
return NULL;
}
config_id = base.ConfigID;
base.ConfigID = EGL_DONT_CARE;
base.SurfaceType = EGL_DONT_CARE;
num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
(_EGLArrayForEach) dri2_match_config, &base);
if (num_configs == 1) {
conf = (struct dri2_egl_config *) matching_config;
if (double_buffer && !conf->dri_double_config)
conf->dri_double_config = dri_config;
else if (!double_buffer && !conf->dri_single_config)
conf->dri_single_config = dri_config;
else
/* a similar config type is already added (unlikely) => discard */
return NULL;
}
else if (num_configs == 0) {
conf = malloc(sizeof *conf);
if (conf == NULL)
return NULL;
memcpy(&conf->base, &base, sizeof base);
if (double_buffer) {
conf->dri_double_config = dri_config;
conf->dri_single_config = NULL;
} else {
conf->dri_single_config = dri_config;
conf->dri_double_config = NULL;
}
conf->base.SurfaceType = 0;
conf->base.ConfigID = config_id;
_eglLinkConfig(&conf->base);
}
else {
assert(0);
return NULL;
}
if (double_buffer) {
surface_type &= ~EGL_PIXMAP_BIT;
if (dri2_dpy->swap_available) {
conf->base.MinSwapInterval = 0;
conf->base.MaxSwapInterval = 1000; /* XXX arbitrary value */
}
}
conf->base.SurfaceType |= surface_type;
return conf;
}
__DRIimage *
dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
{
_EGLDisplay *disp = data;
struct dri2_egl_image *dri2_img;
_EGLImage *img;
(void) screen;
img = _eglLookupImage(image, disp);
if (img == NULL) {
_eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
return NULL;
}
dri2_img = dri2_egl_image(image);
return dri2_img->dri_image;
}
const __DRIimageLookupExtension image_lookup_extension = {
{ __DRI_IMAGE_LOOKUP, 1 },
dri2_lookup_egl_image
};
static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
struct dri2_extension_match {
const char *name;
int version;
int offset;
};
static struct dri2_extension_match dri2_driver_extensions[] = {
{ __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
{ __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
{ NULL, 0, 0 }
};
static struct dri2_extension_match dri2_core_extensions[] = {
{ __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
{ __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
{ __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
{ NULL, 0, 0 }
};
static struct dri2_extension_match swrast_driver_extensions[] = {
{ __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
{ __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
{ NULL, 0, 0 }
};
static struct dri2_extension_match swrast_core_extensions[] = {
{ __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
{ NULL, 0, 0 }
};
static EGLBoolean
dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
struct dri2_extension_match *matches,
const __DRIextension **extensions)
{
int i, j, ret = EGL_TRUE;
void *field;
for (i = 0; extensions[i]; i++) {
_eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
for (j = 0; matches[j].name; j++) {
if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
extensions[i]->version >= matches[j].version) {
field = ((char *) dri2_dpy + matches[j].offset);
*(const __DRIextension **) field = extensions[i];
_eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
extensions[i]->name, extensions[i]->version);
}
}
}
for (j = 0; matches[j].name; j++) {
field = ((char *) dri2_dpy + matches[j].offset);
if (*(const __DRIextension **) field == NULL) {
_eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
matches[j].name, matches[j].version);
ret = EGL_FALSE;
}
}
return ret;
}
static const __DRIextension **
dri2_open_driver(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = disp->DriverData;
const __DRIextension **extensions;
char path[PATH_MAX], *search_paths, *p, *next, *end;
search_paths = NULL;
if (geteuid() == getuid()) {
/* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
search_paths = getenv("LIBGL_DRIVERS_PATH");
}
if (search_paths == NULL)
search_paths = DEFAULT_DRIVER_DIR;
dri2_dpy->driver = NULL;
end = search_paths + strlen(search_paths);
for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
int len;
next = strchr(p, ':');
if (next == NULL)
next = end;
len = next - p;
#if GLX_USE_TLS
snprintf(path, sizeof path,
"%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
#endif
if (dri2_dpy->driver == NULL) {
snprintf(path, sizeof path,
"%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
if (dri2_dpy->driver == NULL)
_eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
}
}
if (dri2_dpy->driver == NULL) {
_eglLog(_EGL_WARNING,
"DRI2: failed to open %s (search paths %s)",
dri2_dpy->driver_name, search_paths);
return NULL;
}
_eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
if (extensions == NULL) {
_eglLog(_EGL_WARNING,
"DRI2: driver exports no extensions (%s)", dlerror());
dlclose(dri2_dpy->driver);
}
return extensions;
}
EGLBoolean
dri2_load_driver(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = disp->DriverData;
const __DRIextension **extensions;
extensions = dri2_open_driver(disp);
if (!extensions)
return EGL_FALSE;
if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
dlclose(dri2_dpy->driver);
return EGL_FALSE;
}
return EGL_TRUE;
}
EGLBoolean
dri2_load_driver_swrast(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = disp->DriverData;
const __DRIextension **extensions;
dri2_dpy->driver_name = "swrast";
extensions = dri2_open_driver(disp);
if (!extensions)
return EGL_FALSE;
if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
dlclose(dri2_dpy->driver);
return EGL_FALSE;
}
return EGL_TRUE;
}
void
dri2_setup_screen(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
unsigned int api_mask;
if (dri2_dpy->dri2) {
api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
} else {
assert(dri2_dpy->swrast);
api_mask = 1 << __DRI_API_OPENGL | 1 << __DRI_API_GLES | 1 << __DRI_API_GLES2;
}
disp->ClientAPIs = 0;
if (api_mask & (1 <<__DRI_API_OPENGL))
disp->ClientAPIs |= EGL_OPENGL_BIT;
if (api_mask & (1 <<__DRI_API_GLES))
disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
if (api_mask & (1 << __DRI_API_GLES2))
disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
assert(dri2_dpy->dri2 || dri2_dpy->swrast);
disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
if (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) {
disp->Extensions.KHR_create_context = EGL_TRUE;
if (dri2_dpy->robustness)
disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
}
if (dri2_dpy->image) {
disp->Extensions.MESA_drm_image = EGL_TRUE;
disp->Extensions.KHR_image_base = EGL_TRUE;
disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
}
}
EGLBoolean
dri2_create_screen(_EGLDisplay *disp)
{
const __DRIextension **extensions;
struct dri2_egl_display *dri2_dpy;
dri2_dpy = disp->DriverData;
if (dri2_dpy->dri2) {
dri2_dpy->dri_screen =
dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
&dri2_dpy->driver_configs, disp);
} else {
assert(dri2_dpy->swrast);
dri2_dpy->dri_screen =
dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
&dri2_dpy->driver_configs, disp);
}
if (dri2_dpy->dri_screen == NULL) {
_eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
return EGL_FALSE;
}
dri2_dpy->own_dri_screen = 1;
extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
if (dri2_dpy->dri2) {
unsigned i;
if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
goto cleanup_dri_screen;
for (i = 0; extensions[i]; i++) {
if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
}
}
} else {
assert(dri2_dpy->swrast);
if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
goto cleanup_dri_screen;
}
dri2_setup_screen(disp);
return EGL_TRUE;
cleanup_dri_screen:
dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
return EGL_FALSE;
}
/**
* Called via eglInitialize(), GLX_drv->API.Initialize().
*/
static EGLBoolean
dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
{
/* not until swrast_dri is supported */
if (disp->Options.UseFallback)
return EGL_FALSE;
switch (disp->Platform) {
#ifdef HAVE_X11_PLATFORM
case _EGL_PLATFORM_X11:
if (disp->Options.TestOnly)
return EGL_TRUE;
return dri2_initialize_x11(drv, disp);
#endif
#ifdef HAVE_LIBUDEV
#ifdef HAVE_DRM_PLATFORM
case _EGL_PLATFORM_DRM:
if (disp->Options.TestOnly)
return EGL_TRUE;
return dri2_initialize_drm(drv, disp);
#endif
#ifdef HAVE_WAYLAND_PLATFORM
case _EGL_PLATFORM_WAYLAND:
if (disp->Options.TestOnly)
return EGL_TRUE;
return dri2_initialize_wayland(drv, disp);
#endif
#endif
#ifdef HAVE_ANDROID_PLATFORM
case _EGL_PLATFORM_ANDROID:
if (disp->Options.TestOnly)
return EGL_TRUE;
return dri2_initialize_android(drv, disp);
#endif
default:
return EGL_FALSE;
}
}
/**
* Called via eglTerminate(), drv->API.Terminate().
*/
static EGLBoolean
dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
_eglReleaseDisplayResources(drv, disp);
_eglCleanupDisplay(disp);
if (dri2_dpy->own_dri_screen)
dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
if (dri2_dpy->fd)
close(dri2_dpy->fd);
if (dri2_dpy->driver)
dlclose(dri2_dpy->driver);
if (dri2_dpy->device_name)
free(dri2_dpy->device_name);
if (disp->PlatformDisplay == NULL) {
switch (disp->Platform) {
#ifdef HAVE_X11_PLATFORM
case _EGL_PLATFORM_X11:
xcb_disconnect(dri2_dpy->conn);
break;
#endif
#ifdef HAVE_DRM_PLATFORM
case _EGL_PLATFORM_DRM:
if (dri2_dpy->own_device) {
gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
}
break;
#endif
default:
break;
}
}
free(dri2_dpy);
disp->DriverData = NULL;
return EGL_TRUE;
}
/**
* Set the error code after a call to
* dri2_egl_display::dri2::createContextAttribs.
*/
static void
dri2_create_context_attribs_error(int dri_error)
{
EGLint egl_error;
switch (dri_error) {
case __DRI_CTX_ERROR_SUCCESS:
return;
case __DRI_CTX_ERROR_NO_MEMORY:
egl_error = EGL_BAD_ALLOC;
break;
/* From the EGL_KHR_create_context spec, section "Errors":
*
* * If <config> does not support a client API context compatible
* with the requested API major and minor version, [...] context flags,
* and context reset notification behavior (for client API types where
* these attributes are supported), then an EGL_BAD_MATCH error is
* generated.
*
* * If an OpenGL ES context is requested and the values for
* attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
* EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
* is not defined, than an EGL_BAD_MATCH error is generated.
*
* * If an OpenGL context is requested, the requested version is
* greater than 3.2, and the value for attribute
* EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
* bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
* EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
* one of these bits set; or if the implementation does not support
* the requested profile, then an EGL_BAD_MATCH error is generated.
*/
case __DRI_CTX_ERROR_BAD_API:
case __DRI_CTX_ERROR_BAD_VERSION:
case __DRI_CTX_ERROR_BAD_FLAG:
egl_error = EGL_BAD_MATCH;
break;
/* From the EGL_KHR_create_context spec, section "Errors":
*
* * If an attribute name or attribute value in <attrib_list> is not
* recognized (including unrecognized bits in bitmask attributes),
* then an EGL_BAD_ATTRIBUTE error is generated."
*/
case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
case __DRI_CTX_ERROR_UNKNOWN_FLAG:
egl_error = EGL_BAD_ATTRIBUTE;
break;
default:
assert(0);
egl_error = EGL_BAD_MATCH;
break;
}
_eglError(egl_error, "dri2_create_context");
}
/**
* Called via eglCreateContext(), drv->API.CreateContext().
*/
static _EGLContext *
dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
_EGLContext *share_list, const EGLint *attrib_list)
{
struct dri2_egl_context *dri2_ctx;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
__DRIcontext *shared =
dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
const __DRIconfig *dri_config;
int api;
(void) drv;
dri2_ctx = malloc(sizeof *dri2_ctx);
if (!dri2_ctx) {
_eglError(EGL_BAD_ALLOC, "eglCreateContext");
return NULL;
}
if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
goto cleanup;
switch (dri2_ctx->base.ClientAPI) {
case EGL_OPENGL_ES_API:
switch (dri2_ctx->base.ClientMajorVersion) {
case 1:
api = __DRI_API_GLES;
break;
case 2:
case 3:
api = __DRI_API_GLES2;
break;
default:
_eglError(EGL_BAD_PARAMETER, "eglCreateContext");
return NULL;
}
break;
case EGL_OPENGL_API:
if ((dri2_ctx->base.ClientMajorVersion >= 4
|| (dri2_ctx->base.ClientMajorVersion == 3
&& dri2_ctx->base.ClientMinorVersion >= 2))
&& dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
api = __DRI_API_OPENGL_CORE;
else
api = __DRI_API_OPENGL;
break;
default:
_eglError(EGL_BAD_PARAMETER, "eglCreateContext");
return NULL;
}
if (conf != NULL) {
/* The config chosen here isn't necessarily
* used for surfaces later.
* A pixmap surface will use the single config.
* This opportunity depends on disabling the
* doubleBufferMode check in
* src/mesa/main/context.c:check_compatible()
*/
if (dri2_config->dri_double_config)
dri_config = dri2_config->dri_double_config;
else
dri_config = dri2_config->dri_single_config;
/* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
* makes sure the back buffer will always be used.
*/
if (conf->SurfaceType & EGL_WINDOW_BIT)
dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
}
else
dri_config = NULL;
if (dri2_dpy->dri2) {
if (dri2_dpy->dri2->base.version >= 3) {
unsigned error;
unsigned num_attribs = 0;
uint32_t ctx_attribs[8];
ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMajorVersion;
ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMinorVersion;
if (dri2_ctx->base.Flags != 0) {
/* If the implementation doesn't support the __DRI2_ROBUSTNESS
* extension, don't even try to send it the robust-access flag.
* It may explode. Instead, generate the required EGL error here.
*/
if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
&& !dri2_dpy->robustness) {
_eglError(EGL_BAD_MATCH, "eglCreateContext");
goto cleanup;
}
ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_FLAGS;
ctx_attribs[num_attribs++] = dri2_ctx->base.Flags;
}
if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
/* If the implementation doesn't support the __DRI2_ROBUSTNESS
* extension, don't even try to send it a reset strategy. It may
* explode. Instead, generate the required EGL error here.
*/
if (!dri2_dpy->robustness) {
_eglError(EGL_BAD_CONFIG, "eglCreateContext");
goto cleanup;
}
ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
ctx_attribs[num_attribs++] = __DRI_CTX_RESET_LOSE_CONTEXT;
}
assert(num_attribs <= ARRAY_SIZE(ctx_attribs));
dri2_ctx->dri_context =
dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
api,
dri_config,
shared,
num_attribs / 2,
ctx_attribs,
& error,
dri2_ctx);
dri2_create_context_attribs_error(error);
} else {
dri2_ctx->dri_context =
dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
api,
dri_config,
shared,
dri2_ctx);
}
} else {
assert(dri2_dpy->swrast);
dri2_ctx->dri_context =
dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
api,
dri_config,
shared,
dri2_ctx);
}
if (!dri2_ctx->dri_context)
goto cleanup;
return &dri2_ctx->base;
cleanup:
free(dri2_ctx);
return NULL;
}
/**
* Called via eglDestroyContext(), drv->API.DestroyContext().
*/
static EGLBoolean
dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
{
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
if (_eglPutContext(ctx)) {
dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
free(dri2_ctx);
}
return EGL_TRUE;
}
/**
* Called via eglMakeCurrent(), drv->API.MakeCurrent().
*/
static EGLBoolean
dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
_EGLSurface *rsurf, _EGLContext *ctx)
{
struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
_EGLContext *old_ctx;
_EGLSurface *old_dsurf, *old_rsurf;
__DRIdrawable *ddraw, *rdraw;
__DRIcontext *cctx;
/* make new bindings */
if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
return EGL_FALSE;
/* flush before context switch */
if (old_ctx && dri2_drv->glFlush)
dri2_drv->glFlush();
ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
if (old_ctx) {
__DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
dri2_dpy->core->unbindContext(old_cctx);
}
if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
if (old_dsurf)
drv->API.DestroySurface(drv, disp, old_dsurf);
if (old_rsurf)
drv->API.DestroySurface(drv, disp, old_rsurf);
if (old_ctx)
drv->API.DestroyContext(drv, disp, old_ctx);
return EGL_TRUE;
} else {
/* undo the previous _eglBindContext */
_eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
assert(&dri2_ctx->base == ctx &&
&dri2_dsurf->base == dsurf &&
&dri2_rsurf->base == rsurf);
_eglPutSurface(dsurf);
_eglPutSurface(rsurf);
_eglPutContext(ctx);
_eglPutSurface(old_dsurf);
_eglPutSurface(old_rsurf);
_eglPutContext(old_ctx);
return EGL_FALSE;
}
}
/*
* Called from eglGetProcAddress() via drv->API.GetProcAddress().
*/
static _EGLProc
dri2_get_proc_address(_EGLDriver *drv, const char *procname)
{
struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
return dri2_drv->get_proc_address(procname);
}
static EGLBoolean
dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
(void) drv;
/* FIXME: If EGL allows frontbuffer rendering for window surfaces,
* we need to copy fake to real here.*/
(*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
return EGL_TRUE;
}
static EGLBoolean
dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
{
(void) drv;
(void) disp;
if (engine != EGL_CORE_NATIVE_ENGINE)
return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
/* glXWaitX(); */
return EGL_TRUE;
}
static EGLBoolean
dri2_bind_tex_image(_EGLDriver *drv,
_EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
struct dri2_egl_context *dri2_ctx;
_EGLContext *ctx;
GLint format, target;
ctx = _eglGetCurrentContext();
dri2_ctx = dri2_egl_context(ctx);
if (!_eglBindTexImage(drv, disp, surf, buffer))
return EGL_FALSE;
switch (dri2_surf->base.TextureFormat) {
case EGL_TEXTURE_RGB:
format = __DRI_TEXTURE_FORMAT_RGB;
break;
case EGL_TEXTURE_RGBA:
format = __DRI_TEXTURE_FORMAT_RGBA;
break;
default:
assert(0);
}
switch (dri2_surf->base.TextureTarget) {
case EGL_TEXTURE_2D:
target = GL_TEXTURE_2D;
break;
default:
assert(0);
}
(*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
target, format,
dri2_surf->dri_drawable);
return EGL_TRUE;
}
static EGLBoolean
dri2_release_tex_image(_EGLDriver *drv,
_EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
{
#if __DRI_TEX_BUFFER_VERSION >= 3
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
struct dri2_egl_context *dri2_ctx;
_EGLContext *ctx;
GLint target;
ctx = _eglGetCurrentContext();
dri2_ctx = dri2_egl_context(ctx);
if (!_eglReleaseTexImage(drv, disp, surf, buffer))
return EGL_FALSE;
switch (dri2_surf->base.TextureTarget) {
case EGL_TEXTURE_2D:
target = GL_TEXTURE_2D;
break;
default:
assert(0);
}
if (dri2_dpy->tex_buffer->releaseTexBuffer!=NULL)
(*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
target,
dri2_surf->dri_drawable);
#endif
return EGL_TRUE;
}
static _EGLImage *
dri2_create_image(_EGLDisplay *disp, __DRIimage *dri_image)
{
struct dri2_egl_image *dri2_img;
if (dri_image == NULL) {
_eglError(EGL_BAD_ALLOC, "dri2_create_image");
return NULL;
}
dri2_img = malloc(sizeof *dri2_img);
if (!dri2_img) {
_eglError(EGL_BAD_ALLOC, "dri2_create_image");
return NULL;
}
if (!_eglInitImage(&dri2_img->base, disp)) {
free(dri2_img);
return NULL;
}
dri2_img->dri_image = dri_image;
return &dri2_img->base;
}
static _EGLImage *
dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
EGLClientBuffer buffer,
const EGLint *attr_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
__DRIimage *dri_image;
if (renderbuffer == 0) {
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
dri_image =
dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
renderbuffer, NULL);
return dri2_create_image(disp, dri_image);
}
static _EGLImage *
dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
EGLClientBuffer buffer, const EGLint *attr_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
EGLint format, name, pitch, err;
_EGLImageAttribs attrs;
__DRIimage *dri_image;
name = (EGLint) (uintptr_t) buffer;
err = _eglParseImageAttribList(&attrs, disp, attr_list);
if (err != EGL_SUCCESS)
return NULL;
if (attrs.Width <= 0 || attrs.Height <= 0 ||
attrs.DRMBufferStrideMESA <= 0) {
_eglError(EGL_BAD_PARAMETER,
"bad width, height or stride");
return NULL;
}
switch (attrs.DRMBufferFormatMESA) {
case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
format = __DRI_IMAGE_FORMAT_ARGB8888;
pitch = attrs.DRMBufferStrideMESA;
break;
default:
_eglError(EGL_BAD_PARAMETER,
"dri2_create_image_khr: unsupported pixmap depth");
return NULL;
}
dri_image =
dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
attrs.Width,
attrs.Height,
format,
name,
pitch,
NULL);
return dri2_create_image(disp, dri_image);
}
#ifdef HAVE_WAYLAND_PLATFORM
/* This structure describes how a wl_buffer maps to one or more
* __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
* offsets and strides of the planes in the buffer. This table maps a
* wl_drm format code to a description of the planes in the buffer
* that lets us create a __DRIimage for each of the planes. */
static const struct wl_drm_components_descriptor {
uint32_t dri_components;
EGLint components;
int nplanes;
} wl_drm_components[] = {
{ __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
{ __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
{ __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
{ __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
{ __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
};
static _EGLImage *
dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
EGLClientBuffer _buffer,
const EGLint *attr_list)
{
struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
const struct wl_drm_components_descriptor *f;
__DRIimage *dri_image;
_EGLImageAttribs attrs;
EGLint err;
int32_t plane;
if (!wayland_buffer_is_drm(&buffer->buffer))
return NULL;
err = _eglParseImageAttribList(&attrs, disp, attr_list);
plane = attrs.PlaneWL;
if (err != EGL_SUCCESS) {
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
return NULL;
}
f = buffer->driver_format;
if (plane < 0 || plane >= f->nplanes) {
_eglError(EGL_BAD_PARAMETER,
"dri2_create_image_wayland_wl_buffer (plane out of bounds)");
return NULL;
}
dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
if (dri_image == NULL) {
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
return NULL;
}
return dri2_create_image(disp, dri_image);
}
#endif
_EGLImage *
dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
_EGLContext *ctx, EGLenum target,
EGLClientBuffer buffer, const EGLint *attr_list)
{
(void) drv;
switch (target) {
case EGL_GL_RENDERBUFFER_KHR:
return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
case EGL_DRM_BUFFER_MESA:
return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
#ifdef HAVE_WAYLAND_PLATFORM
case EGL_WAYLAND_BUFFER_WL:
return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
#endif
default:
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
}
static EGLBoolean
dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_image *dri2_img = dri2_egl_image(image);
(void) drv;
dri2_dpy->image->destroyImage(dri2_img->dri_image);
free(dri2_img);
return EGL_TRUE;
}
static _EGLImage *
dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
const EGLint *attr_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_image *dri2_img;
_EGLImageAttribs attrs;
unsigned int dri_use, valid_mask;
int format;
EGLint err = EGL_SUCCESS;
(void) drv;
dri2_img = malloc(sizeof *dri2_img);
if (!dri2_img) {
_eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
if (!attr_list) {
err = EGL_BAD_PARAMETER;
goto cleanup_img;
}
if (!_eglInitImage(&dri2_img->base, disp)) {
err = EGL_BAD_PARAMETER;
goto cleanup_img;
}
err = _eglParseImageAttribList(&attrs, disp, attr_list);
if (err != EGL_SUCCESS)
goto cleanup_img;
if (attrs.Width <= 0 || attrs.Height <= 0) {
_eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
attrs.Width, attrs.Height);
goto cleanup_img;
}
switch (attrs.DRMBufferFormatMESA) {
case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
format = __DRI_IMAGE_FORMAT_ARGB8888;
break;
default:
_eglLog(_EGL_WARNING, "bad image format value 0x%04x",
attrs.DRMBufferFormatMESA);
goto cleanup_img;
}
valid_mask =
EGL_DRM_BUFFER_USE_SCANOUT_MESA |
EGL_DRM_BUFFER_USE_SHARE_MESA |
EGL_DRM_BUFFER_USE_CURSOR_MESA;
if (attrs.DRMBufferUseMESA & ~valid_mask) {
_eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
attrs.DRMBufferUseMESA & ~valid_mask);
goto cleanup_img;
}
dri_use = 0;
if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
dri_use |= __DRI_IMAGE_USE_SHARE;
if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
dri_use |= __DRI_IMAGE_USE_SCANOUT;
if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
dri_use |= __DRI_IMAGE_USE_CURSOR;
dri2_img->dri_image =
dri2_dpy->image->createImage(dri2_dpy->dri_screen,
attrs.Width, attrs.Height,
format, dri_use, dri2_img);
if (dri2_img->dri_image == NULL) {
err = EGL_BAD_ALLOC;
goto cleanup_img;
}
return &dri2_img->base;
cleanup_img:
free(dri2_img);
_eglError(err, "dri2_create_drm_image_mesa");
return EGL_NO_IMAGE_KHR;
}
static EGLBoolean
dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
EGLint *name, EGLint *handle, EGLint *stride)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_image *dri2_img = dri2_egl_image(img);
(void) drv;
if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_NAME, name)) {
_eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
return EGL_FALSE;
}
if (handle)
dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_HANDLE, handle);
if (stride)
dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_STRIDE, stride);
return EGL_TRUE;
}
#ifdef HAVE_WAYLAND_PLATFORM
static void
dri2_wl_reference_buffer(void *user_data, uint32_t name,
struct wl_drm_buffer *buffer)
{
_EGLDisplay *disp = user_data;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
__DRIimage *img;
int i, dri_components = 0;
img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
buffer->buffer.width,
buffer->buffer.height,
buffer->format, (int*)&name, 1,
buffer->stride,
buffer->offset,
NULL);
if (img == NULL)
return;
dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
buffer->driver_format = NULL;
for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
if (wl_drm_components[i].dri_components == dri_components)
buffer->driver_format = &wl_drm_components[i];
if (buffer->driver_format == NULL)
dri2_dpy->image->destroyImage(img);
else
buffer->driver_buffer = img;
}
static void
dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
{
_EGLDisplay *disp = user_data;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
dri2_dpy->image->destroyImage(buffer->driver_buffer);
}
static struct wayland_drm_callbacks wl_drm_callbacks = {
.authenticate = NULL,
.reference_buffer = dri2_wl_reference_buffer,
.release_buffer = dri2_wl_release_buffer
};
static EGLBoolean
dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
struct wl_display *wl_dpy)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
(void) drv;
if (dri2_dpy->wl_server_drm)
return EGL_FALSE;
wl_drm_callbacks.authenticate =
(int(*)(void *, uint32_t)) dri2_dpy->authenticate;
dri2_dpy->wl_server_drm =
wayland_drm_init(wl_dpy, dri2_dpy->device_name,
&wl_drm_callbacks, disp);
if (!dri2_dpy->wl_server_drm)
return EGL_FALSE;
return EGL_TRUE;
}
static EGLBoolean
dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
struct wl_display *wl_dpy)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
(void) drv;
if (!dri2_dpy->wl_server_drm)
return EGL_FALSE;
wayland_drm_uninit(dri2_dpy->wl_server_drm);
dri2_dpy->wl_server_drm = NULL;
return EGL_TRUE;
}
static EGLBoolean
dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
struct wl_buffer *_buffer,
EGLint attribute, EGLint *value)
{
struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
const struct wl_drm_components_descriptor *format;
if (!wayland_buffer_is_drm(&buffer->buffer))
return EGL_FALSE;
format = buffer->driver_format;
switch (attribute) {
case EGL_TEXTURE_FORMAT:
*value = format->components;
return EGL_TRUE;
case EGL_WIDTH:
*value = buffer->buffer.width;
break;
case EGL_HEIGHT:
*value = buffer->buffer.height;
break;
}
return EGL_FALSE;
}
#endif
static void
dri2_unload(_EGLDriver *drv)
{
struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
if (dri2_drv->handle)
dlclose(dri2_drv->handle);
free(dri2_drv);
}
static EGLBoolean
dri2_load(_EGLDriver *drv)
{
struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
#ifdef HAVE_SHARED_GLAPI
#ifdef HAVE_ANDROID_PLATFORM
const char *libname = "libglapi.so";
#else
const char *libname = "libglapi.so.0";
#endif
#else
/*
* Both libGL.so and libglapi.so are glapi providers. There is no way to
* tell which one to load.
*/
const char *libname = NULL;
#endif
void *handle;
/* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
if (handle) {
dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
dlsym(handle, "_glapi_get_proc_address");
if (!dri2_drv->get_proc_address || !libname) {
/* no need to keep a reference */
dlclose(handle);
handle = NULL;
}
}
/* if glapi is not available, loading DRI drivers will fail */
if (!dri2_drv->get_proc_address) {
_eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
return EGL_FALSE;
}
dri2_drv->glFlush = (void (*)(void))
dri2_drv->get_proc_address("glFlush");
dri2_drv->handle = handle;
return EGL_TRUE;
}
/**
* This is the main entrypoint into the driver, called by libEGL.
* Create a new _EGLDriver object and init its dispatch table.
*/
_EGLDriver *
_eglBuiltInDriverDRI2(const char *args)
{
struct dri2_egl_driver *dri2_drv;
(void) args;
dri2_drv = malloc(sizeof *dri2_drv);
if (!dri2_drv)
return NULL;
memset(dri2_drv, 0, sizeof *dri2_drv);
if (!dri2_load(&dri2_drv->base)) {
free(dri2_drv);
return NULL;
}
_eglInitDriverFallbacks(&dri2_drv->base);
dri2_drv->base.API.Initialize = dri2_initialize;
dri2_drv->base.API.Terminate = dri2_terminate;
dri2_drv->base.API.CreateContext = dri2_create_context;
dri2_drv->base.API.DestroyContext = dri2_destroy_context;
dri2_drv->base.API.MakeCurrent = dri2_make_current;
dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
dri2_drv->base.API.WaitClient = dri2_wait_client;
dri2_drv->base.API.WaitNative = dri2_wait_native;
dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
#ifdef HAVE_WAYLAND_PLATFORM
dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
#endif
dri2_drv->base.Name = "DRI2";
dri2_drv->base.Unload = dri2_unload;
return &dri2_drv->base;
}